Foreign currency exchange (forex)
A foreign currency exchange rate is a price that represents how much it costs to buy the currency of one country using the currency of another country. Currency traders buy and sell currencies through forex transactions based on how they expect currency exchange rates will fluctuate. When the value of one currency rises relative to another, traders will earn profits if they purchased the appreciating currency, or suffer losses if they sold the appreciating currency.
Concept at a glance
Definition and explanation
A foreign currency exchange rate is a price that represents how much it costs to buy the currency of one country using the currency of another country. Currency traders buy and sell currencies through forex transactions based on how they expect currency exchange rates will fluctuate. When the value of one currency rises relative to another, traders will earn profits if they purchased the appreciating currency, or suffer losses if they sold the appreciating currency. [1]
Foreign Currency Exchange (Forex) Trading For Individual Investors [1]
Frequently asked questions
What does Foreign currency exchange (forex) mean in the cited reference?
A foreign currency exchange rate is a price that represents how much it costs to buy the currency of one country using the currency of another country. Currency traders buy and sell currencies through forex transactions based on how they expect currency exchange rates will fluctuate. When the value of one currency rises relative to another, traders will earn profits if they purchased the appreciating currency, or suffer losses if they sold the appreciating currency. [1]
Sources and review dates
Reviewed 23 October 2026. Historical dates and award-time affiliations retain their original context. A review date is not an event date. Background sources are identified separately from official records.